linux-stable.git/drivers/staging/zsmalloc, branch linux-3.5.y

staging: zsmalloc: Finish conversion to a separate module

2012-08-09T15:22:54+00:00

commit 069f101fa463351f528773d73b74e9b606b3f66a upstream.

ZSMALLOC is tristate, but the code has no MODULE_LICENSE and since it
depends on GPL-only symbols it cannot be loaded as a module.  This in
turn breaks zram which now depends on it.  I assume it's meant to be
Dual BSD/GPL like the other z-stuff.

There is also no module_exit, which will make it impossible to unload.
Add the appropriate module_init and module_exit declarations suggested
by comments.

Reported-by: Christian Ohm 
References: http://bugs.debian.org/677273
Signed-off-by: Ben Hutchings 
Reviewed-by: Jonathan Nieder 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: add/fix function comment

2012-05-09T20:20:22+00:00

Add/fix the comment.

Signed-off-by: Minchan Kim 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: rename zspage_order with zspage_pages

2012-05-09T20:20:22+00:00

zspage_order defines how many pages are needed to make a zspage.
So _order_ is rather awkward naming. It already deceive Jonathan
- http://lwn.net/Articles/477067/
" For each size, the code calculates an optimum number of pages (up to 16)"

Let's change from _order_ to _pages_ and some function names.

Signed-off-by: Minchan Kim 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman

Merge 3.4-rc5 into staging-next

2012-05-02T18:48:07+00:00

This resolves the conflict in:
	drivers/staging/vt6656/ioctl.c

Signed-off-by: Greg Kroah-Hartman

zsmalloc: use PageFlag macro instead of [set|test]_bit

2012-04-25T17:59:16+00:00

MM code always uses PageXXX to handle page flags.
Let's keep the consistency.

Signed-off-by: Minchan Kim 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: fix memory leak

2012-04-10T16:18:59+00:00

This patch fixes a memory leak in zsmalloc where the first
subpage of each zspage is leaked when the zspage is freed.

Signed-off-by: Nitin Gupta 
Acked-by: Seth Jennings 
Acked-by: Dan Magenheimer 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: remove SPARSEMEM dep from Kconfig

2012-03-07T21:31:28+00:00

This patch removes the SPARSEMEM from the zsmalloc
Kconfig

Signed-off-by: Seth Jennings 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: change ZS_MIN_ALLOC_SIZE

2012-03-07T21:31:28+00:00

This patch ensures that the value of ZS_MIN_ALLOC_SIZE, for the
PAGE_SIZE and MAX_PHYSMEM_BITS on the system, allows for all
possible object ids in the lowest storage class to be encoded
in the object handle.

Signed-off-by: Seth Jennings 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: calculate MAX_PHYSMEM_BITS if not defined

2012-03-07T21:31:28+00:00

This patch provides a way to determine or "set a
reasonable value for" MAX_PHYSMEM_BITS in the case that
it is not defined (i.e. !SPARSEMEM)

Signed-off-by: Seth Jennings 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman

staging: zsmalloc: add ZS_MAX_PAGES_PER_ZSPAGE

2012-03-07T21:31:28+00:00

This patch moves where max_zspage_order is declared and
changes its meaning.  "Order" typically implies 2^order
of something; however, it is currently being used as the
"maximum number of single pages in a zspage".  To add clarity,
ZS_MAX_ZSPAGE_ORDER is now used to calculate ZS_MAX_PAGES_PER_ZSPAGE,
which is 2^ZS_MAX_ZSPAGE_ORDER and is the upper bound on the number
of pages in a zspage.

Signed-off-by: Seth Jennings 
Acked-by: Nitin Gupta 
Signed-off-by: Greg Kroah-Hartman